Dynamic graphic information classification device and method

Abstract

A dynamic graphic information classification device which is installed in a vehicle and comprises at least one automatic driving assistant system, a wireless communication interface, a storage device, a GPS module, and a processor. The wireless communication interface is connected with a cloud server where a high definition map and 3D point cloud map information are stored. The GPS module acquires position coordinates of the vehicle from an electronic map. The storage device stores at least one of at least one road curvature and at least one crossroads feature of a road environment of a predetermined driving path of the vehicle. The processor classifies the map information to be downloaded according to at least one of at least one road curvature and at least one crossroads feature and an automatic driving level of the automatic driving assistant system, whereby to reduce the time for download.

What is claimed is: 
     
       1. A dynamic graphic information classification device, which is installed in a vehicle, the dynamic graphic information classification device comprising:
 a GPS (Global Positioning System) module that is configured to acquire position coordinates of said vehicle from an electronic map; 
 a processor that is electrically connected with said GPS module and that is configured to work out a predetermined driving path on said electronic map according to a destination and said position coordinates of said vehicle, wherein said vehicle is configured to run along said predetermined driving path, and wherein a road environment of said predetermined driving path includes at least one of at least one road curvature and at least one crossroads feature; 
 at least one automatic driving assistant system that is electrically connected with said processor and that is pre-configured to a predetermined automatic driving level; 
 a wireless communication interface electrically connected with said processor and wirelessly linked to a cloud server via a wireless network, wherein said cloud server is configured to store different grades of a high definition map and 3D point cloud map information; and 
 a storage device that is electrically connected with said processor and that is configured to store said electronic map and at least one of said at least one road curvature and said at least one crossroads feature, wherein 
 before said processor detects that said vehicle reaches said road environment including at least one of said at least one road curvature and said at least one crossroads feature using said GPS module, said processor is configured to select one of the different grades of said high definition map and said 3D point cloud map information via said wireless communication interface based on the predetermined automatic driving level of said automatic driving assistant system and at least one of said at least one road curvature and said at least one crossroads feature, and then to find and download local map information corresponding to said road environment from the selected one of the different grades of said high definition map or said 3D point cloud map information. 
 
     
     
       2. The dynamic graphic information classification device according to  claim 1 , wherein said processor is configured to use said wireless communication interface to download at least one of said at least one road curvature and said at least one crossroads feature from said high definition map in said cloud server. 
     
     
       3. The dynamic graphic information classification device according to  claim 1 , wherein said electronic map stored in said storage device includes at least one of said at least one road curvature and said at least one crossroads feature. 
     
     
       4. The dynamic graphic information classification device according to  claim 2 , wherein
 said processor is also electrically connected with an inertia measurement unit (IMU); 
 said processor is configured to use said wireless communication to acquire an internet speed and a data volume of said local map information, to use said inertia measurement unit to acquire a speed of said vehicle, and to use said GPS module to acquire a longitude and a latitude of said road environment; and 
 then, said processor is configured to determine a time point to download said local map information according to said position coordinates of said vehicle, said longitude and said latitude, said speed of said vehicle, said internet speed, and said data volume of said local map information. 
 
     
     
       5. The dynamic graphic information classification device according to  claim 3 , wherein
 said processor is also electrically connected with an inertia measurement unit (IMU); 
 said processor is configured to use said wireless communication to acquire an internet speed and a data volume of said local map information, to use said inertia measurement unit to acquire a speed of said vehicle, and to use said GPS module to acquire a longitude and a latitude of said road environment; and 
 then, said processor is configured to determine a time point to download said local map information according to said position coordinates of said vehicle, said longitude and said latitude, said speed of said vehicle, said internet speed, and said data volume of said local map information. 
 
     
     
       6. A dynamic graphic information classification method for an automatic driving assistant system installed in a vehicle, the automatic driving assistant system being pre-configured to a predetermined automatic driving level, the method comprising steps:
 providing a cloud server that is configured to store different grades of a high definition map and 3D point cloud map information; 
 using a destination and position coordinates of a vehicle to work out a predetermined driving path on an electronic map, wherein said vehicle runs along said predetermined driving path; a road environment of said predetermined driving path includes at least one of at least one road curvature and at least one crossroads feature; 
 storing, in a storage device of the vehicle, at least one of said at least one road curvature and said at least one crossroads feature; and 
 before said vehicle reaches said road environment including at least one of said at least one road curvature and said at least one crossroads feature, selecting one of the different grades of said high definition map and 3D point cloud map information stored in the cloud server based on an automatic driving level of an automatic driving assistant system installed in said vehicle and at least one of said at least one road curvature and said at least one crossroads feature; and finding and downloading local map information corresponding to said road environment from the selected one of the different grades of said high definition map or said 3D point cloud map information. 
 
     
     
       7. The dynamic graphic information classification method according to  claim 6 , wherein at least one of said at least one road curvature and said at least one crossroads feature is stored in said electronic map. 
     
     
       8. The dynamic graphic information classification method according to  claim 6 , wherein at least one of said at least one road curvature and said at least one crossroads feature is downloaded from said cloud server and then stored. 
     
     
       9. The dynamic graphic information classification method according to  claim 7 , wherein
 after classifying said high definition map and said 3D point cloud map information stored in said cloud server, a speed of said vehicle, an internet speed, a data volume of said local map information, a longitude and a latitude of said road environment are acquired; and 
 then, a time point to download said local map information is determined according to said position coordinates of said vehicle, said longitude and said latitude, said speed of said vehicle, said internet speed, and said data volume of said local map information. 
 
     
     
       10. The dynamic graphic information classification method according to  claim 8 , wherein
 after classifying said high definition map and said 3D point cloud map information stored in said cloud server, a speed of said vehicle, an internet speed, a data volume of said local map information, a longitude and a latitude of said road environment are acquired; and 
 then, a time point to download said local map information is determined according to said position coordinates of said vehicle, said longitude and said latitude, said speed of said vehicle, said internet speed, and said data volume of said local map information.